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Beijing will host 2022 Winter Olympics. Do you know about winter sports? They are very interesting. They are not only 1． for our health but also can make us strong and brave. There are many kinds of winter sports, such as sledding（滑雪橇）, skiing, ice hockey and so on. Here are some interesting 2． about them.
A sled looks like a boat. It 3． move easily over snow or ice. Many years ago. Sleds were made of wood and used to transport goods（货物）4． people. Now kids sled for fun. They like to 5． a sled and go down from a hill.
Skiing is one of the fastest sports on land. The fastest skier can ski up to 255 km/h. It is as 6． as a high-speed train. Skiing is 7． one of the most dangerous sports in the world.
Ice hockey is very popular with Canadians. It is a team sport. There are two teams trying to score goals and 8． team has six players. All the two player wear skates, big pads （护具） and helmets （头盔）. They each carry a stick to hit the puck（冰球） into the goal .They can use sticks and their 9． to move the puck but can’t hold it in their hands.
Don’t forget to stay warm and follow the safety rules 10． you are playing on ice.
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
